Belt-buckle



G. F. SCHEER.

BELT BUCKLE.

APPLICATLON FILED JUNE 25,1920.

1,386,8U5, Patented Aug. 9, 1921.

INVENTOR Geo/ 76 F Scheer ATTORNEY sitar GEORGE F. SCHEER, OF ROCHESTER, NEW YORK, ASSIGNOR T0 SCHEER MANUFAC- TURING COMPANY, INC., OF ROCHESTER, NEW YORK, A. CORPORATION OF NEW YORK.

BELT-BUCKLE.

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Application filed June 25,

To all whom it may concern:

c it known that I, GEORGE F. SOHEER, a citizen of the United States, residin at Rochester in the county of Monroe and tate of New York, have invented certain new and useful Improvements in Belt-Buckles, of which the following is a specification.

The object of this invention is to provide a new and improved form of belt buckle.

This and other objects of the invention will be fully illustrated in the drawings, described in the specification, and pointed out in the claim at the end thereof.

In the accompanying drawings,

Figure 1 is a perspective view of the belt buckle viewed from the rear, with the belt attached thereto.

Fig. 2 is a perspective view of the involute 1 iIp or tongue or clamp of the buckle.

*ig. 3 shows a section on the line 3 -3 of Fig. 1.

Fig. 4 is a perspective view of the clamp for the fixed end of the belt, the clamp bein shown closed.

ig. 5 is a perspective view of the clamp for the fixed end of the belt, the clamp being shown open.

In the drawings, like reference numerals indicate like parts.

In the drawings, reference numeral 1 indicates the buckle having the flanged sides 2 and 3 thereon. Mounted to rock between the flanged sides at one end of the buckle is the grip 4, which grip is provided with the trunnions 5, 5, on the opposite ends thereof, which engage with round openings in the sides 2 and 3. It is also provided with a pin 6 that engages in the curved slot 7 by which its swinging movement forward and back is limited. The grip has the shape of an involute in cross section as shown in Fig. 2 and'it has zones 8 and 9 on each side thereof, having serrated teeth that are adapted to grip the belt and it has a central zone 10 which is cut away and left blank so that it will not grip the belt.

I have determined by experiment that a recurrent curve for a gripping surface, such as a circle or eccentric or an oval, will not answer the purpose satisfactorily, but that a non-recurrent curve, such as an involute, will firmly grip the belt and increase the grip as tension is applied to the belt for it Specification of Letters Patent.

Patented Aug. 9, 1921.

1920; Serial No. 391,754.

seems clear that the involute surface swings toward the belt as the belt is drawn forward, and it grips the belt at all times with a surface of considerable width that is substantially parallel to the inside of the buckle, and if the involute is sufliciently prolonged, it will not pass over a center but will be stopped by the buckle plate and by the belt if it is interposed between the buckle and plate.

The other end of the belt is positively and permanently fastened in the clamp shown in Figs. 4 and 5, in which 12 indicates the plate having trunnion bearings 13 and 14 thereon and the locking teeth 15. Cooperating with the plate 12 is the plate 17, having the upturned ends 18 and 19, which ends are provided with openings for the engagement therewith of the lugs 16. The plate 17 is also provided with the tooth 20. The teeth 15 and 20 point toward the middle of the buckle, this being the direction opposite to that in which the strain is directed when the belt is being worn. The end of the belt is placed on the plate 12 and the plate 17 is swung over and the lugs 16 are engaged with the openings in the flanged ends 18 and 19, by which the two plates are locked together, securely fastening the fixed end of the belt between them. The buckle and belt are then ready to be worn and the strap 21 is passed around the waist of the person and inserted in the right hand end of the buckle shown in Fig. 1 until the desired position is secured. The involute clamp 1 is then brought against the belt and the movement of the belt to the right draws the involute in with it, pressing the involute and belt against the plate of the buckle. se curely locking the belt in the desired position. t is easily released from the grip by moving the free end of the belt in the opposite direction.

I claim:

A belt buckle having a plate with flanges thereon, a grip mounted to swing between the flanges and against said plate, said grip having a gripping surface toward the plate having the shape of an involute, said grip having zones of serrated teeth on each side thereof, and a depression in the middle.

In testimony whereof I affix my signature.

GEORGE F. SCHEER. 

